taken from mice into becoming beating heart cell, process didn't in petrie dish and they mimic the environment in the woom. not always a pre-size sigh he says. >>y weekend sometimes wou hinge on whher i came in and saw the cells or not. >>reporter: once the team had enough of the beating cell they began watching them as they grew and developed painstakingly extracting the dna and cataloging the dna changes. possible made possible by the development of powerful new gene sequencing technology. >> this cost 3 billion dollars to one individual dna now we do the same person dna in a week for 3000 dollars. >>reporter: still it took massive network of computer to organize the data into a color-coded genetic blue print detailing the creation of heart cell. while having the blue print conjure up image of agreeing heart but the impact might be preparing them or heading off birth defect in babies before even pwoyvrnlt we potentially co-part of the attraction to understanding the blue print especially this type, is that it is very aamenable to drug type intervention. >>reporter: the team hopes to study di